Three-dimensional laser cutting head

Abstract

The utility model discloses a three-dimensional laser cutting head which comprises a laser cutting tool bit, a linear guide rail assembly, a first rotating assembly and a second rotating assembly, a moving platform is installed on the linear guide rail assembly in a sliding mode, a first installing plate is installed on the moving platform, the laser cutting tool bit is installed on the first installing plate, and the second rotating assembly is installed on the second installing plate. A second mounting plate is mounted on the linear guide rail assembly, the first rotating assembly comprises a first shell, a second driving assembly is mounted in the first shell, the second driving assembly is connected with the second mounting plate, a connecting pipe is arranged at the top of the first shell, and the second rotating assembly comprises a hollow rotating platform; the hollow rotating platform is connected with the top of the connecting pipe, and a second shell is arranged on the top of the hollow rotating platform. According to the three-dimensional laser cutting head, an internal wiring mode is adopted, the influence of wire harnesses on the three-dimensional laser cutting head can be avoided, installation and maintenance are convenient, and the compatibility to accessories of different brands is good.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting equipment, and in particular to a three-dimensional laser cutting head. Background Technology

[0002] Laser cutting utilizes a laser beam that passes through an optical path and is then directed through a nozzle onto the surface of the workpiece to cut the material. Today, laser cutting technology is widely used across various industries, and the demand for cutting three-dimensional workpieces is gradually increasing. Three-dimensional five-axis laser cutting systems are widely used for laser cutting of three-dimensional metal sheet metal parts and metal tubular parts, especially for processing components made of materials such as high-strength steel, hot-formed steel, low-carbon steel, galvanized sheet, aluminum, and stainless steel, offering high processing efficiency.

[0003] Existing 3D laser cutting heads generally use external wiring. During operation, the wiring can affect the movement of the 3D laser cutting head. After prolonged use, the laser cutting head may experience performance degradation or damage, requiring replacement. When replacing parts, only laser cutting heads of the same brand and model can be selected because the mounting hole positions of laser cutting heads from different brands are different, making them unsuitable for direct installation on the mounting platform. This results in poor compatibility of the mounting platform with similar products from different brands.

[0004] For example, the mounting hole positions on the laser cutting heads of Boci CQ30015AA BLT310T, Jiaqiang BM06K0631U, and Wanshunxing NC30C models are slightly different, making them unable to be directly installed on the same mounting platform. Even products from the same brand may have different mounting hole positions; for example, the mounting hole positions on the laser cutting heads of Gangchun EDO-3.2E and Gangchun EDO-201E models are different. Utility Model Content

[0005] The purpose of this invention is to provide a three-dimensional laser cutting head that uses internal wiring to avoid the influence of the wiring harness on the three-dimensional laser cutting head, and is convenient for installation and maintenance, and has good compatibility with accessories from different brands.

[0006] To achieve the above and other related objectives, this utility model provides a three-dimensional laser cutting head, comprising: a laser cutting head, a linear guide assembly, a first rotating assembly, and a second rotating assembly. A moving platform is slidably mounted on the linear guide assembly. A first mounting plate is detachably mounted on the moving platform, and the laser cutting head is detachably mounted on the first mounting plate. A second mounting plate is detachably mounted on the surface of the linear guide assembly away from the moving platform. A first driving assembly is provided on the linear guide assembly, and the first driving assembly is drivenly connected to the moving platform for driving the moving platform to slide. The first rotating assembly includes a first housing. A second drive assembly is installed inside the first housing. The output end of the second drive assembly is detachably connected to the second mounting plate. The second drive assembly is used to drive the linear guide rail assembly to rotate in the vertical direction. A connecting pipe is provided on the top of the first housing. The second rotating assembly includes a hollow rotating platform. The rotating end of the hollow rotating platform is installed and connected to the top of the connecting pipe. A third drive assembly is provided on the second rotating assembly. The third drive assembly is driven and connected to the hollow rotating platform to drive the rotating end of the hollow rotating platform to rotate. A second housing is provided on the top of the hollow rotating platform. The top of the second housing is installed and connected to the gantry platform.

[0007] In one example of the three-dimensional laser cutting head of this utility model, the linear guide rail assembly includes a guide rail housing, a lead screw is rotatably installed inside the guide rail housing along the extension direction of the guide rail housing, a threaded sleeve is threaded onto the lead screw, the threaded sleeve is fixedly connected to the moving platform, and the first drive assembly is drivenly connected to the lead screw for driving the lead screw to rotate.

[0008] In one example of the three-dimensional laser cutting head of this utility model, the first driving component includes a first driving motor, one end of the guide rail housing is provided with a first motor seat, the first driving motor is installed in the first motor seat, and the output end of the first driving motor is connected to the lead screw drive.

[0009] In one example of the three-dimensional laser cutting head of this utility model, a first limiting plate is provided on the moving platform, and a first sensor that cooperates with the first limiting plate is provided at the top and bottom of the side wall of the guide rail housing.

[0010] In one example of the three-dimensional laser cutting head of this utility model, the first mounting plate is provided with a plurality of first countersunk holes, which cooperate with the moving platform for installation and fixation with the moving platform. The first mounting plate surrounding the plurality of first countersunk holes is provided with a plurality of first connecting holes, which cooperate with the laser cutting head for installation and fixation with the laser cutting head.

[0011] In one example of the three-dimensional laser cutting head of this utility model, the second drive assembly includes a second drive motor and a coupling. The first housing is provided with a second motor base. The second drive motor is fixedly mounted on the second motor base. The output end of the second drive motor is equipped with the coupling. The other end of the coupling is detachably connected to the second mounting plate.

[0012] In one example of the three-dimensional laser cutting head of this utility model, the second mounting plate has a plurality of second countersunk holes at the top and bottom edges of the surface facing the first rotating component. The plurality of second countersunk holes cooperate with the guide rail housing for installation and fixation with the guide rail housing. The second mounting plate has a plurality of third countersunk holes in the middle of the surface facing the guide rail housing. The plurality of third countersunk holes cooperate with the coupling for installation and fixation with the coupling.

[0013] In one example of the three-dimensional laser cutting head of this utility model, a plurality of the third countersunk holes are arranged in a ring, and a circular groove is provided on the surface of the second mounting plate surrounding the plurality of third countersunk holes. The circular groove cooperates with the end of the coupling. A circular boss is provided on the surface of the second mounting plate inside the plurality of third countersunk holes. The circular boss cooperates with the end face of the coupling.

[0014] In one example of the three-dimensional laser cutting head of this utility model, the second mounting plate around the circular groove is provided with a plurality of second connecting holes, which cooperate with the guide rail housing for installation and fixation with the guide rail housing.

[0015] In one example of the three-dimensional laser cutting head of this utility model, a second limiting plate is provided on the top of the second mounting plate, and a second sensor that cooperates with the second limiting plate is provided on the connecting pipe.

[0016] In one example of the three-dimensional laser cutting head of this utility model, the third driving component includes a third driving motor, a third motor base is provided on the top surface of the hollow rotating platform, the third driving motor is fixedly installed on the third motor base, and the output end of the third driving motor is drivenly connected to the rotating end of the hollow rotating platform.

[0017] In one example of the three-dimensional laser cutting head of this utility model, a third limiting plate is provided on the outer wall of the rotating end of the hollow rotating platform, and a third sensor that cooperates with the third limiting plate is provided on the hollow rotating platform.

[0018] In one example of the three-dimensional laser cutting head of this utility model, the side wall of the second housing is provided with an opening that cooperates with the third drive motor and the third motor base.

[0019] This invention relates to a three-dimensional laser cutting head mounted on a gantry platform using a second outer shell. The hollow rotating platform in the second rotating assembly drives the connecting tube to rotate horizontally. The second driving component in the first rotating assembly drives the linear guide assembly to rotate vertically. The first driving component in the linear guide assembly drives the moving platform to slide along the linear guide assembly, thereby using the moving platform to move the laser cutting head, completing the laser cutting head's movement in three-dimensional space. The first outer shell, second outer shell, and connecting tube are hollow internally, facilitating internal wiring and preventing the wiring from affecting the three-dimensional laser cutting head. The first mounting plate connects the moving platform and the laser cutting head, and the second mounting plate connects the second driving component and the linear guide assembly. The mounting holes on the first and second mounting plates can be set according to the mounting hole positions of different brands of accessories. Simply replacing the first and second mounting plates allows for the installation of accessories from different brands, effectively improving compatibility with various accessory brands. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the three-dimensional laser cutting head of this utility model;

[0021] Figure 2 This is a front view of an embodiment of the three-dimensional laser cutting head of this utility model;

[0022] Figure 3 This is a perspective view of an embodiment of the three-dimensional laser cutting head of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure of the linear guide rail assembly in one embodiment of the three-dimensional laser cutting head of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the first mounting plate in one embodiment of the three-dimensional laser cutting head of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the first rotating component in one embodiment of the three-dimensional laser cutting head of this utility model;

[0026] Figure 7 The three-dimensional shape of the second mounting plate in one embodiment of the three-dimensional laser cutting head of this utility model Figure 1 ;

[0027] Figure 8 The three-dimensional shape of the second mounting plate in one embodiment of the three-dimensional laser cutting head of this utility model Figure 2 .

[0028] Component designation:

[0029] 100. Laser cutting head; 200. Linear guide rail assembly; 210. Moving platform; 211. First limiting plate; 220. First drive assembly; 221. First drive motor; 230. Guide rail housing; 240. First motor mount; 250. First sensor; 300. First mounting plate; 310. First countersunk hole; 320. First connecting hole; 400. Second mounting plate; 410. Second countersunk hole; 420. Third countersunk hole; 430. Circular groove; 440. Circular boss; 450. Second connecting plate. 460. Connecting hole; 470. Second limiting plate; 500. Second sensor; 510. First rotating assembly; 511. First housing; 511. Second motor base; 520. Second drive assembly; 521. Second drive motor; 522. Coupling; 600. Connecting pipe; 700. Second rotating assembly; 710. Hollow rotating platform; 711. Third motor base; 720. Third drive assembly; 721. Third drive motor; 730. Third limiting plate; 740. Third sensor; 800. Second housing. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0031] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0032] Please see Figures 1 to 4This utility model provides a three-dimensional laser cutting head, which includes: a laser cutting head 100, a linear guide rail assembly 200, a first rotating assembly 500, and a second rotating assembly 700. A moving platform 210 is slidably mounted on the linear guide rail assembly 200. A first mounting plate 300 is detachably mounted on the moving platform 210. The laser cutting head 100 is detachably mounted on the first mounting plate 300. A second mounting plate 400 is detachably mounted on the surface of the linear guide rail assembly 200 away from the moving platform 210. A first driving assembly 220 is provided on the linear guide rail assembly 200. The first driving assembly 220 is drivenly connected to the moving platform 210 and is used to drive the moving platform 210 to slide. The first rotating assembly 500 includes a first housing 510, within which a second driving assembly 520 is installed. The output end of the second driving assembly 520 is detachably connected to the second mounting plate 400. The second driving assembly 520 drives the linear guide assembly 200 to rotate vertically. A connecting pipe 600 is provided at the top of the first housing 510. The second rotating assembly 700 includes a hollow rotating platform 710, the rotating end of which is connected to the top of the connecting pipe 600. A third driving assembly 720 is provided on the second rotating assembly 700 and is drivingly connected to the hollow rotating platform 710. The third driving assembly 720 drives the rotating end of the hollow rotating platform 710 to rotate. A second housing 800 is provided at the top of the hollow rotating platform 710, and the top of the second housing 800 is connected to a gantry platform.

[0033] This utility model utilizes a second outer shell 800 mounted on a gantry platform. The hollow rotating platform 710 in the second rotating assembly 700 can drive the connecting pipe 600 to rotate in the horizontal direction. The second driving assembly 520 in the first rotating assembly 500 can drive the linear guide assembly 200 to rotate in the vertical direction. The first driving assembly 220 in the linear guide assembly 200 can drive the moving platform 210 to slide along the linear guide assembly 200. Thus, the moving platform 210 drives the laser cutting head 100 to move, completing the movement of the laser cutting head 100 in three-dimensional space. The first housing 510, the second housing 800, and the connecting tube 600 are hollow inside, which facilitates internal wiring and avoids the influence of the wiring harness on the 3D laser cutting head. The first mounting plate 300 is used to connect the moving platform 210 and the laser cutting head 100, and the second mounting plate 400 is used to connect the second drive assembly 520 and the linear guide assembly 200. The first mounting plate 300 and the second mounting plate 400 can be set according to the installation requirements of different brands of accessories, such as changing the position and size of the connecting holes, and changing the size parameters of the first mounting plate 300 and the second mounting plate 400. The first mounting plate 300 and the second mounting plate 400 can effectively improve the compatibility with accessories from different brands.

[0034] Please see Figure 4 In one example of the three-dimensional laser cutting head of this utility model, the linear guide rail assembly 200 includes a guide rail housing 230. A lead screw is rotatably mounted inside the guide rail housing 230 along its extension direction. A threaded sleeve is threaded onto the lead screw, and the threaded sleeve is fixedly connected to the moving platform 210. The first drive assembly 220 is drivenly connected to the lead screw and is used to drive the lead screw to rotate. The first drive assembly 220 includes a first drive motor 221. A first motor seat 240 is provided at one end of the guide rail housing 230. The first drive motor 221 is installed inside the first motor seat 240, and the output end of the first drive motor 221 is drivenly connected to the lead screw. A first limiting plate 211 is provided on the moving platform 210. A first sensor 250 cooperating with the first limiting plate 211 is provided at the top and bottom of the side wall of the guide rail housing 230. When the mobile platform 210 is controlled to slide, the first drive motor 221 is controlled to drive the lead screw to rotate. The lead screw drives the lead sleeve to drive the mobile platform 210 to slide. When the first limit plate 211 contacts any of the first sensors 250, the first drive motor 221 stops running.

[0035] Please see Figure 5In one example of the three-dimensional laser cutting head of this utility model, the first mounting plate 300 is provided with a plurality of first countersunk holes 310, which cooperate with the moving platform 210 for installation and fixation. The first mounting plate 300 surrounding the plurality of first countersunk holes 310 is provided with a plurality of first connecting holes 320, which cooperate with the laser cutting head 100 for installation and fixation. The plurality of first countersunk holes 310 on the first mounting plate 300 are fixedly connected to the moving platform 210 by bolts, and the laser cutting head 100 is fixedly connected to the plurality of first connecting holes 320 on the first mounting plate 300 by bolts.

[0036] Please see Figure 6 In one example of the three-dimensional laser cutting head of this utility model, the second drive assembly 520 includes a second drive motor 521 and a coupling 522. The first housing 510 is provided with a second motor base 511. The second drive motor 521 is fixedly mounted on the second motor base 511. The output end of the second drive motor 521 is equipped with the coupling 522. The other end of the coupling 522 is detachably connected to the second mounting plate 400.

[0037] Please see Figure 7 and Figure 8In one example of the three-dimensional laser cutting head of this utility model, the second mounting plate 400 has a plurality of second countersunk holes 410 at the top and bottom edges of the surface facing the first rotating assembly 500. These second countersunk holes 410 cooperate with the guide rail housing 230 for installation and fixation. The second mounting plate 400 has a plurality of third countersunk holes 420 in the middle of the surface facing the guide rail housing 230. These third countersunk holes 420 cooperate with the coupling 522 for installation and fixation. The third countersunk holes 420 are arranged in a ring. A circular groove 430 is provided on the surface of the second mounting plate 400 surrounding the third countersunk holes 420. The circular groove 430 cooperates with the end of the coupling 522. A circular boss 440 is provided on the surface of the second mounting plate 400 inside the third countersunk holes 420. The circular boss 440 cooperates with the end face of the coupling 522. The second mounting plate 400 surrounding the circular groove 430 is provided with a plurality of second connecting holes 450, which mate with the guide rail housing 230 for installation and fixation. A plurality of second countersunk holes 410 on the second mounting plate 400 are fixedly connected to the guide rail housing 230 by bolts, and a plurality of third countersunk holes 420 on the second mounting plate 400 are fixedly connected to the end of the coupling 522 by bolts. The circular boss 440 and the circular groove 430 are used to position the coupling 522, and the guide rail housing 230 is fixedly connected to the plurality of second connecting holes 450 on the second mounting plate 400 by bolts.

[0038] Please see Figure 2 In one example of the three-dimensional laser cutting head of this utility model, a second limiting plate 460 is provided on the top of the second mounting plate 400, and a second sensor 470 cooperating with the second limiting plate 460 is provided on the connecting pipe 600. The rotation angle of the laser cutting head 100 can be obtained by detecting the rotation angle of the output end of the second drive motor 521. The rotation angle is calculated when the second limiting plate 460 moves away from the second sensor 470, and the rotation angle returns to zero when the second limiting plate 460 triggers the second sensor 470 again. It should be noted that detecting the rotation angle of the output end of the drive motor, calculating the rotation angle, and the angle zeroing operation are all prior art and will not be described in detail here.

[0039] Please see Figure 2 and Figure 3In one example of the three-dimensional laser cutting head of this utility model, the third drive assembly 720 includes a third drive motor 721. A third motor base 711 is provided on the top surface of the hollow rotating platform 710. The third drive motor 721 is fixedly mounted on the third motor base 711, and its output end is drivenly connected to the rotating end of the hollow rotating platform 710. A third limiting plate 730 is provided on the outer wall of the rotating end of the hollow rotating platform 710, and a third sensor 740 that cooperates with the third limiting plate 730 is provided on the hollow rotating platform 710. An opening is provided on the side wall of the second outer shell 800 that cooperates with the third drive motor 721 and the third motor base 711. The third limiting plate 730 and the third sensor 740 are used to measure the rotation angle of the hollow rotating platform 710, and their principle is similar to that of the second limiting plate 460 and the second sensor 470.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A three-dimensional laser cutting head, characterized in that, include: Laser cutting head; A linear guide rail assembly, on which a moving platform is slidably mounted, a first mounting plate is detachably mounted on the moving platform, a laser cutting head is detachably mounted on the first mounting plate, a second mounting plate is detachably mounted on the surface of the linear guide rail assembly away from the moving platform, and a first driving component is provided on the linear guide rail assembly, which is drivingly connected to the moving platform for driving the moving platform to slide. A first rotating assembly includes a first housing, a second driving assembly is installed inside the first housing, the output end of the second driving assembly is detachably connected to the second mounting plate, the second driving assembly is used to drive the linear guide rail assembly to rotate in the vertical direction, and a connecting pipe is provided on the top of the first housing; The second rotating assembly includes a hollow rotating platform, the rotating end of which is installed and connected to the top of the connecting pipe. The second rotating assembly is provided with a third driving assembly, which is driven and connected to the hollow rotating platform to drive the rotating end of the hollow rotating platform to rotate. The top of the hollow rotating platform is provided with a second outer shell, the top of which is installed and connected to the gantry platform.

2. The three-dimensional laser cutting head as described in claim 1, characterized in that, The linear guide rail assembly includes a guide rail housing, inside which a lead screw is rotatably mounted along the extension direction of the guide rail housing. A threaded sleeve is threaded onto the lead screw, and the threaded sleeve is fixedly connected to the moving platform. The first drive assembly is drivenly connected to the lead screw and is used to drive the lead screw to rotate.

3. The three-dimensional laser cutting head as described in claim 2, characterized in that, The first drive assembly includes a first drive motor. One end of the guide rail housing is provided with a first motor base. The first drive motor is installed in the first motor base. The output end of the first drive motor is connected to the lead screw drive. The moving platform is provided with a first limiting plate. The top and bottom of the side wall of the guide rail housing are respectively provided with a first sensor that cooperates with the first limiting plate.

4. The three-dimensional laser cutting head as described in claim 2, characterized in that, The first mounting plate is provided with a plurality of first countersunk holes, which cooperate with the mobile platform for installation and fixation. The first mounting plate surrounding the plurality of first countersunk holes is provided with a plurality of first connecting holes, which cooperate with the laser cutting head for installation and fixation.

5. The three-dimensional laser cutting head as described in claim 2, characterized in that, The second drive assembly includes a second drive motor and a coupling. A second motor mount is provided inside the first housing. The second drive motor is fixedly mounted on the second motor mount. The coupling is installed at the output end of the second drive motor. The other end of the coupling is detachably connected to the second mounting plate.

6. The three-dimensional laser cutting head as described in claim 5, characterized in that, The second mounting plate has a plurality of second countersunk holes at the top and bottom edges of the surface facing the first rotating component. The plurality of second countersunk holes cooperate with the guide rail housing for installation and fixation with the guide rail housing. The second mounting plate has a plurality of third countersunk holes in the middle of the surface facing the guide rail housing. The plurality of third countersunk holes cooperate with the coupling for installation and fixation with the coupling.

7. The three-dimensional laser cutting head as described in claim 6, characterized in that, The third countersunk holes are arranged in a ring. A circular groove is provided on the surface of the second mounting plate surrounding the third countersunk holes. The circular groove mates with the end of the coupling. A circular boss is provided on the surface of the second mounting plate inside the third countersunk holes. The circular boss mates with the end face of the coupling. A plurality of second connecting holes are provided on the second mounting plate surrounding the circular groove. The plurality of second connecting holes mate with the guide rail housing for installation and fixation with the guide rail housing.

8. The three-dimensional laser cutting head as described in claim 1, characterized in that, The top of the second mounting plate is provided with a second limiting plate, and the connecting pipe is provided with a second sensor that cooperates with the second limiting plate.

9. The three-dimensional laser cutting head as described in claim 1, characterized in that, The third drive assembly includes a third drive motor. A third motor base is provided on the top surface of the hollow rotating platform. The third drive motor is fixedly installed on the third motor base. The output end of the third drive motor is drivenly connected to the rotating end of the hollow rotating platform. A third limiting plate is provided on the outer wall of the rotating end of the hollow rotating platform. A third sensor that cooperates with the third limiting plate is provided on the hollow rotating platform.

10. The three-dimensional laser cutting head as described in claim 9, characterized in that, The second housing has an opening on its side wall that mates with the third drive motor and the third motor mount.

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